The lubricating aluminum sheet produced by Henan SIGNI effectively prevents the drill tip from indentation and scratches on the surface of the copper clad laminate during processing. It can provide positioning and guiding function during the downward process of the drill bit, and improve the positioning accuracy of drilling. Secondly, the lubricating aluminum sheet for drilling of printed circuit boards has an excellent thermal conductivity function, which can quickly dissipate the heat generated by friction when the drill is drilled at high speed, effectively prevent the drill from overheating, thereby increasing the life of the drill and better hole wall conditions, which can effectively prevent high-speed drilling. Burrs are produced on the surface of the film copper foil board. Prevent the drill pin from scratching the surface of the PCB.
The lubricating aluminum sheet for drilling of printed circuit boards must meet the following 2 requirements for the surface of the aluminum sheet:
1. The surface of the aluminum plate should be clean, no cracks and oxidized debris are allowed.
2. The surface of the aluminum plate is not allowed to have defects such as depression, scratches, roll indentation, etc.
